# OTHER
> MSHA accident `220211960010` · 03/25/2021 · Thunder Basin Coal Company LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** OTHER
- **Accident type:** Bodily reaction, NEC
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Walking, Running
- **Injury source:** BODILY MOTION
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 22
- **Mine experience:** 14.83 years
## Operator
- **Controller:** Arch Resources Inc
- **Operator:** Thunder Basin Coal Company LLC
- **Mine:** [4800977](https://api.ai-analytics.org/mine/4800977)
## Narrative

The employee says: felt knee pop while walking around haul truck.  The employee continued to work and did not want medical care until 05/03/2021.  Employee was then evaluated and scheduled for arthroscopic surgery.  Employee had surgery on 07/06/2021 and became reportable and began missing work shifts on 07/09/2021.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*